85478320

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:334

約数の個数: 80

約数和(自身を含む): 204897600

約数和(自身を除く): 119419280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 101, 142, 149, 202, 284, 298, 355, 404, 505, 568, 596, 710, 745, 808, 1010, 1136, 1192, 1420, 1490, 1616, 2020, 2384, 2840, 2980, 4040, 5680, 5960, 7171, 8080, 10579, 11920, 14342, 15049, 21158, 28684, 30098, 35855, 42316, 52895, 57368, 60196, 71710, 75245, 84632, 105790, 114736, 120392, 143420, 150490, 169264, 211580, 240784, 286840, 300980, 423160, 573680, 601960, 846320, 1068479, 1203920, 2136958, 4273916, 5342395, 8547832, 10684790, 17095664, 21369580, 42739160, 85478320]

約数ペア:

[(1, 85478320), (2, 42739160), (4, 21369580), (5, 17095664), (8, 10684790), (10, 8547832), (16, 5342395), (20, 4273916), (40, 2136958), (71, 1203920), (80, 1068479), (101, 846320), (142, 601960), (149, 573680), (202, 423160), (284, 300980), (298, 286840), (355, 240784), (404, 211580), (505, 169264), (568, 150490), (596, 143420), (710, 120392), (745, 114736), (808, 105790), (1010, 84632), (1136, 75245), (1192, 71710), (1420, 60196), (1490, 57368), (1616, 52895), (2020, 42316), (2384, 35855), (2840, 30098), (2980, 28684), (4040, 21158), (5680, 15049), (5960, 14342), (7171, 11920), (8080, 10579)]